ONTARIO
PROVINCIAL
STANDARD
SPECIFICATION
METRIC
OPSS.PROV 804
NOVEMBER 2014
CONSTRUCTION SPECIFICATION FOR
SEED AND COVER
TABLE OF CONTENTS
804.01
SCOPE
804.02
REFERENCES
804.03
DEFINITIONS
804.04
DESIGN AND SUBMISSION REQUIREMENTS
804.05
MATERIALS
804.06
EQUIPMENT
804.07
CONSTRUCTION
804.08
QUALITY ASSURANCE
804.09
MEASUREMENT FOR PAYMENT
804.10
BASIS OF PAYMENT
APPENDICES
804-A
Commentary
804.01
SCOPE
This specification covers the requirements for seeding alone or seeding with either rolled or hydraulically
applied erosion control products.
804.01.01
Specification Significance and Use
This specification is written as a provincial-oriented specification. Provincial-oriented specifications are
developed to reflect the administration, testing, and payment policies, procedures, and practices of the Ontario
Ministry of Transportation.
Use of this specification or any other specification shall be according to the Contract Documents.
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Rev. Date: 11/2014 OPSS.PROV 804
804.01.02
Appendices Significance and Use
Appendices are not for use in provincial contracts as they are developed for municipal use, and then, only
when invoked by the Owner.
Appendices are developed for the Owner’s use only.
Inclusion of an appendix as part of the Contract Documents is solely at the discretion of the Owner.
Appendices are not a mandatory part of this specification and only become part of the Contract Documents as
the Owner invokes them.
Invoking a particular appendix does not obligate an Owner to use all available appendices. Only invoked
appendices form part of the Contract Documents.
The decision to use any appendix is determined by an Owner after considering their contract requirements
and their administrative, payment, and testing procedures, policies, and practices. Depending on these
considerations, an Owner may not wish to invoke some or any of the available appendices.
804.02
REFERENCES
When the Contract Documents indicate that provincial-oriented specifications are to be used and there is a
provincial-oriented specification of the same number as those listed below, references within this specification
to an OPSS shall be deemed to mean OPSS.PROV, unless use of a municipal-oriented specification is
specified in the Contract Documents. When there is not a corresponding provincial-oriented specification, the
references below shall be considered to be to the OPSS listed, unless use of a municipal-oriented
specification is specified in the Contract Documents.
This specification refers to the following standards, specifications, or publications:
Ontario Ministry of Transportation Publication
Seeding and Cover Quality Assurance Visual Inspection Field Guide
Canadian and Provincial Statutes
Canada Seeds Act (R.S., 1985, c. S-8)
Ontario Water Resources Act
804.03
DEFINITIONS
For the purpose of this specification, the following definitions apply:
Cover means any approved or specified material such as rolled erosion control products, (i.e., blankets) or
hydraulically applied erosion control products (i.e., hydraulic mulch, bonded fibre matrix, fibre reinforced
matrix).
Seeded Earth Area means the prepared earth area that has received the applied seed and fertilizer.
Uniform, Cohesive Mat means an application of cover that is unvarying in consistency and when all of the
cover material particles are consolidated and adhere together to produce a solid layer that protects the seeded
earth area from heat and adverse environmental conditions, yet allows moisture to percolate into the
underlying soil.
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Rev. Date: 11/2014 OPSS.PROV 804
Waterbody means any permanent or intermittent, natural or constructed body of water including lakes, ponds,
wetlands and watercourses, but does not include sewage works as defined in the Ontario Water Resources
Act.
804.04
DESIGN AND SUBMISSION REQUIREMENTS
804.04.01
Submission Requirements
A legible, valid Certificate of Seed Analysis from a seed testing laboratory approved by the Canadian Food
Inspection Agency for all single seed species and all seed mixtures to be used on the Contract shall be
submitted to the Contract Administrator for review a minimum of 24 hours prior to any seeding operations.
804.05
MATERIALS
804.05.01
Seed
804.05.01.01
Certificate of Seed Analysis
The Certificate of Seed Analysis shall identify the seed supplier's lot designation numbers.
Test results from the Certificate of Seed Analysis shall show the germination and purity for each seed species
of the mix, as well as the seed mix composition expressed as a percentage of each seed species by mass for
each seed mix specified in the Contract Documents. Test results shall comply with the values shown in
Table 1 for the various seed mixes.
804.05.01.02
Seed Packaging, Labeling, and Storage
All seed and seed mixes shall be in the original factory sealed package with the original legible label securely
attached.
Labeling shall be in accordance with the requirements of the Canada Seeds Act and Regulations. Each
package shall be labeled to show:
a) The name and address of the seed supplier.
b) The name of the seed mix and the various individual seed species that comprise the seed mix and the
percentage by mass of each.
c) The grade of the seed or seed mix.
d) The supplier's lot designation number corresponding to the Certificate of Seed Analysis.
e) Mass in kilograms of the seed mix.
f)
The inoculant type, strain, and expiry date.
All seed and inoculant shall be stored in cool, dry locations until use. Inoculant is only required for seed mixes
containing Crown Vetch or Birdsfoot Trefoil.
804.05.01.03
Permanent Seed Mixes
Permanent seed mixes shall be as specified in the Contract Documents and as shown in Table 1.
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Rev. Date: 11/2014 OPSS.PROV 804
804.05.02
Annual Nurse Crop Seed
Nurse crop seed shall be either Fall Rye Grain or Winter Wheat Grain, unless otherwise approved by the
Contract Administrator.
804.05.03
Fertilizer
Fertilizer shall be supplied in original factory sealed bags bearing the manufacturer's original label indicating
mass and analysis. All fertilizer shall be in granular form being dry, free flowing, free from lumps, and with an
analysis shown in Table 2.
804.05.04
Cover
804.05.04.01
Mulch
Mulch shall be either a mixture of straw mulch and straw mulch tackifier or hydraulic mulch.
804.05.04.02
Straw Mulch
Straw mulch shall be oat or wheat straw. Straw shall be supplied in bales, dry, and free of weeds and other
foreign materials.
804.05.04.03
Straw Mulch Tackifiers
Organic straw mulch tackifiers may include wood and fibre paper mulch or guar and starch based tackifiers.
Asphalt based tackifiers shall not be used.
804.05.04.04
Hydraulic Mulch
Hydraulic mulch shall consist of shredded wood or paper fibres or both, water or a stabilizing emulsion or both.
Stabilizing emulsions shall consist of an organic tackifier or an inorganic polymer. Common stabilizing
emulsions include guar gum, psyllium, or polyacrylamide or all three.
Hydraulic mulch shall be capable of dispersing rapidly in water to form a homogeneous slurry and remain in
such a state when agitated or mixed with other specified materials. When applied, hydraulic mulch shall form
a uniform, cohesive mat. Hydraulic mulch shall not inhibit growth or germination of the seed mix. Hydraulic
mulch shall be dry, free of weeds and other foreign materials, and shall be supplied in factory sealed packages
bearing the manufacturer's label indicating the product name and mass.
804.05.04.05
Matrix
Matrix shall be Bonded Fibre Matrix (BFM) or Fibre Reinforced Matrix (FRM).
804.05.04.06
Bonded Fibre Matrix (BFM) and Fibre Reinforced Matrix (FRM)
BFM shall consist of thermally refined wood fibers and 10% by weight cross-linked hydro-colloidal tackifiers.
BFM shall be 100% biodegradable. The curing period for BFM shall be not more than 48 hours.
FRM shall consist of thermally refined wood fibers, 10% by weight cross-linked hydro-colloidal tackifiers, and
5% by weight crimped man-made fibers. FRM shall be 100% biodegradable. FRM shall not have a curing
period.
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Rev. Date: 11/2014 OPSS.PROV 804
BFM and FRM shall be hydraulically applied and after application be capable of adhering to the soil. In a dry
state, BFM and FRM shall be comprised of not less than 70% by weight of long stranded wood fibres held
together by organic or mineral bonding agents or both. The hydrated BFM or FRM shall form a viscous
material that when applied and dried creates a high strength, porous, and erosion-resistant uniform, cohesive
mat. The bonding agent shall not dissolve or disperse upon re-wetting. BFM and FRM shall not inhibit the
germination or growth of plant material.
804.05.04.07
Erosion Control Blanket (ECB)
ECB shall be of a consistent thickness with a 100% biodegradable even fibre distribution. The ECB shall be
covered on top with a biodegradable and photodegradable plastic mesh or may be sewn together with cotton
thread. ECB shall be supplied in a dry rolled mat protected with an outer waterproof wrap bearing the
manufacturer's original label indicating product name and application instructions.
804.05.05
Erosion Control Blanket (ECB) Staples
ECB staples shall be u-shaped, constructed of wire with a diameter of at least 2.5 mm with legs at least
150 mm long and 25 mm apart.
804.05.06
Water
Water shall be free of any contaminants or impurities that would adversely affect the germination and growth
of vegetation.
804.06
EQUIPMENT
804.06.01
Hydraulic Seeder and Mulcher
The hydraulic seeder and mulcher shall be capable of mixing the materials into homogeneous slurry and
maintaining the slurry in a homogeneous state until it is applied. The discharge pumps and gun nozzles shall
be capable of applying the materials uniformly over the specified area. A hose extension for the hydraulic
seeder and mulcher shall be on site and available for use for areas outside of the range of the gun nozzle.
804.06.02
Straw Mulch Blower
The straw mulch blower shall be capable of separating straw from the bales without chopping it into short
lengths and applying the straw mulch in a uniform, cohesive mat.
When tackifiers are used, the straw mulch blower shall be capable of applying straw mulch and tackifiers
simultaneously. The straw mulch blower shall be equipped with a minimum of two nozzles located inside the
end of the blower pipe to coat the straw with the tackifier. Crimping may also be used to secure the straw
mulch.
804.07
CONSTRUCTION
804.07.01
Operational Constraints
The seeding operation shall not commence until the Contract Administrator has approved the surface
preparation and the layout of seed mix locations and cover types.
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Rev. Date: 11/2014 OPSS.PROV 804
Seed only and seed and cover applications or re-applications shall not be carried out under adverse weather
conditions such as high wind or heavy rain or when field conditions are not conducive to seed germination
such as frozen soil or soil covered with snow, ice, or standing water.
Seeded earth areas shall be maintained and erosion controlled until final acceptance of the seed and cover.
Seed or cover shall not come in contact with the foliage of any trees, shrubs, or other vegetation, except as
specified in the Seeding subsection. Seed or cover shall not come in contact with waterbodies.
BFM or FRM shall be installed by personnel certified and trained by the manufacturer in the proper mixing and
installation of the product. BFM shall not be applied when rainfall is expected within 48 hours, during rainfall,
or within 12 hours after rainfall.
804.07.02
Surface Preparation for Seeding
The surface to be seeded shall be prepared not more than 5 Days prior to the seeding operation.
At the time of seeding, all surface areas designated for seeding shall have a fine-graded uniform surface and
shall exhibit no evidence of erosion. The surface shall be uniformly cultivated to a minimum depth of 50 mm
and shall not have surface stones greater than 25 mm in diameter, foreign material, and weeds.
804.07.03
Layout
The locations and limits of the seed mixes and cover types specified in the Contract Documents shall be
staked out on the ground surface.
804.07.04
Seeding
804.07.04.01
Application Rates for Seed, Fertilizer, and Water
Application rates for primary seed, nurse crop seed, and fertilizer shall be as shown in Table 2.
804.07.04.02
Seed and Fertilizer Application
Seed and fertilizer shall be applied prior to the application of cover.
Seed, fertilizer, and water shall be thoroughly mixed in the hydraulic seeder and mulcher into a homogeneous
water slurry. The water slurry shall be applied to the prepared earth areas by the nozzle sprayer or extension
hose.
The seeding equipment shall be calibrated to provide the coverage shown in Table 2. There shall be a
uniform dispersal of the mixed material over the entire area designated for seeding. The spray shall not
dislodge soil or cause erosion.
Seed and fertilizer may be applied separately by a cyclone spreader.
Seeding shall overlap the adjoining ground cover by 300 mm.
804.07.05
Cover Application
Mulch, ECB, and matrix cover materials shall be applied at the locations specified in the Contract Documents
as a separate operation immediately following the application of seed and fertilizer.
The hydraulic seeder and mulcher shall be properly calibrated to provide the coverage as specified for each of
the hydraulically applied cover materials.
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Rev. Date: 11/2014 OPSS.PROV 804
804.07.05
Cover Application
Straw mulch shall be applied to form a uniform, cohesive mat over 100% of the seeded earth area. The straw
mulch shall be applied to a minimum depth of 25 mm and a maximum depth of 50 mm measured at the time
of application.
804.07.05.02
Hydraulic Mulch Application
Hydraulic mulch shall be applied at the rate of 2,000 kg of dry product per 10,000 m². Hydraulic mulch shall be
thoroughly mixed with water into a homogeneous slurry.
The hydraulic mulch slurry shall be applied to the seeded earth areas by nozzle sprayer or extension hose.
The mixed material shall be evenly dispersed over the entire seeded earth area to form a uniform, cohesive
mat. The spray shall not dislodge soil or cause erosion.
804.07.05.03
Bonded Fibre Matrix (BFM) or Fibre Reinforced Matrix (FRM) Application
BFM or FRM shall be applied at a minimum rate of 3,700 kg of dry product per 10,000 m². BFM and FRM
shall be thoroughly mixed with water in a hydraulic seeder and mulcher at a rate of 20-30 kg of dry product to
500-600 litres of water to form a homogeneous slurry.
The BFM and FRM slurry shall be applied to the seeded earth areas by nozzle sprayer or extension hose. The
BFM and FRM slurry shall be evenly dispersed in successive applications from different directions over the
seeded earth area to form a uniform, cohesive mat. The spray shall not dislodge soil or cause erosion.
804.07.05.04
Erosion Control Blanket (ECB) Application
ECB shall be placed and stapled into position according to the manufacturer's installation instructions over the
entire designated surface area. Blankets shall be installed in direct contact with the ground surface to form a
uniform, cohesive mat over the seeded earth area. The ECB shall be anchored to the soil and tenting of the
ECB shall not occur.
On slopes, the uppermost edge of the ECB shall be extended 1 metre beyond the crest of the slope and
anchored. When extension beyond the crest of the slope is not possible, the ECB shall be anchored in a
150 mm wide by 150 mm deep trench excavation at the top of the slope. The trench shall be backfilled with
the excavated native material and compacted.
804.07.06
Cleanup
When seed and cover materials are applied to the foliage of trees, shrubs, other susceptible plant material, or
waterbodies, the seed and cover materials shall be immediately removed from the trees, shrubs, plant
material, and waterbodies and the trees, shrubs, and plant material washed with clean water.
When seed and cover materials are applied to areas or objects other than those designated, the seed and
cover materials shall be removed from the areas and objects.
804.07.07
Protection of Waterbodies and Waterbody Banks
Protection of waterbodies and waterbody banks shall be as specified in the Contract Documents.
804.07.08
Management of Excess Material
Management of excess material shall be as specified in the Contract Documents.
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Rev. Date: 11/2014 OPSS.PROV 804
804.08
QUALITY ASSURANCE
804.08.01
Performance Measure
All seeded areas shall be inspected by the Contract Administrator using the Seeding and Cover Quality
Assurance Visual Inspection Field Guide (SCQAVIFG) to ensure compliance with this specification at 30, 60,
and 90-Day periods following the seed and cover operation.
At the 30-Day inspection within the seeded area:
a) The applied cover shall be visually intact and shall form a uniform, cohesive mat.
b) Germination of the nurse crop shall be visually evident.
At the 60-Day inspection within the seeded area:
a) The nurse crop shall be evident at mature height in an evenly dispersed, uniform cover.
b) Germination of the specified permanent seed species shall be visually evident in an evenly dispersed
uniform cover.
c) There shall not be significant bare areas, both in terms of quantity and size.
d) Non-seeded, non-specified vegetation shall not exceed 20% of the seeded earth area.
At the 90-Day inspection within the seeded area:
a) The specified permanent seed species shall be at an average height of 50 mm in an evenly dispersed,
uniform cover.
b) There shall not be significant bare areas, both in terms of quantity and size.
c) Non-seeded, non-specified vegetation shall not exceed 20% of the seeded earth area.
Inspections shall not be made during the winter dormant period or when site conditions prohibit a visual field
inspection. The timing intervals between inspections shall be suspended during the winter dormant period
shown in Table 3.
804.08.02
Failure to Meet Performance Measure
If the completed work does not meet the performance measures of the 30-Day inspection, the Contract
Administrator shall document the failed areas, notify the Contractor of those areas, and re-inspect at the
60-Day inspection.
If the completed work does not meet the performance measures of the 60-Day inspection, the Contract
Administrator shall notify the Contractor in writing of the failed areas. The Contractor shall re-apply the
specified material in accordance with this specification within 14 Days of receiving the notification. The
Contract Administrator shall re-inspect the seeded area at the 90-Day inspection.
If the completed work does not meet the performance measures of the 90-Day inspection, the Contract
Administrator shall notify the Contractor in writing of the failed areas. The Contractor shall re-apply the
specified material in accordance with this specification within 14 Days of receiving the notification. The
Contract Administrator shall re-inspect the seeded area 30 Days after re-application of material.
Inspections and re-application of material shall continue, as outlined in the 90-Day inspection clause above,
until the seeded area has been accepted.
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Rev. Date: 11/2014 OPSS.PROV 804
All replaced seed and cover shall be subject to the Quality Assurance section of this specification.
804.08.03
Referee Evaluation
Referee evaluation shall only apply to the germination and growth of the permanent seed mix species.
Disputes arising from the performance measure evaluation shall be settled through referee testing using an
actual live seedling count of the specified permanent seed mix species within the seeded earth area.
An independent consultant with experience in herbaceous plant identification shall perform the referee
evaluation. Both parties shall agree on the selection of the independent consultant and both parties shall be
bound by the consultant's evaluation.
The actual count shall be based on minimum germination requirements and minimum levels of acceptability to
meet industry standards and federal legislation governing the testing, inspection, quality, and sale of seed.
To determine the number of seeds per unit of weight, published standard industry lists shall be referenced.
When these lists show a range in the number of seeds per unit of weight, the mid-range number shall be
used. When there is a difference in the estimated number of seeds by weight from one industry standard list
to another, the lower figure shall be used.
To determine the germination rate for each seed species, the number of seeds per unit of weight is factored
by the minimum germination rate of 70% in accordance with the Canada Seeds Act. A further 25% reduction
is allowed to account for variation in seeding application, seedbed quality, seedbed preparation, and area
cover.
The Contractor and the Owner may agree to use a simplified analysis, when instead of counting each seedling
of each individual seeded perennial species of the mix, only the total number of seedlings of the mix is
counted. If the parties cannot agree to the simplified analysis, the default method is a seedling count of each
seeded perennial species.
The field inspection to determine the number of live plant seedlings should only be performed after the 90-Day
inspection and when the seedlings reach an identifiable and measurable size.
The sampling procedure should be randomized over an area that both parties agree is representative of the
seeded Contract. The selection and evaluation process is as follows:
a) Select a representative area from the average seeded areas, eliminating the thinnest and thickest growth
areas from the analysis.
b) Measure its length and width. Use a random numbers table to generate five sets of X and Y axis
coordinates from the area.
c) Each axis coordinate is a sampling point. A sampling plot, or quadrat, is set out in a 200 x 1,000 mm plot
with the axis coordinate becoming the lower right-hand corner of each quadrat.
d) Each quadrant is divided into 20 sub-sampling units, each being 100 x 100 mm.
e) The sub-sampling units are numbered from 1 to 20.
f)
Using a random numbers table, two of the twenty sub-sampling units are randomly selected.
g) Live seedlings of each individual seeded perennial species of the mix are counted in the selected
sub-sampling units to determine actual plant densities.
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Rev. Date: 11/2014 OPSS.PROV 804
h) An average seedling density per seeded perennial species, expressed as the number of seedlings per
square metre is generated for each sampling plot or quadrat, based on the data from the two selected
sub-sampling units.
i)
The procedure is repeated for the four other sampling points.
j)
The average number of seedlings per square metre for each of the seeded perennial species generated
from the five sampling points is evaluated against the minimum industry standard benchmark for the
seeded mix.
If the results of the referee evaluation prove that the seed and cover is unacceptable in meeting the minimum
industry standard for germination, the Contractor shall then re-apply seed and cover in accordance with this
specification to all areas under dispute. In addition, the Contractor shall be responsible for all costs associated
with the referee evaluation process.
If the results of the referee evaluation prove that the seed and cover is acceptable in meeting the minimum
industry standard for germination, the Owner shall then be responsible for all costs associated with the referee
evaluation process.
804.09
MEASUREMENT FOR PAYMENT
804.09.01
Actual Measurement
804.09.01.01
Seed
Seed measurement shall be in square metres following the contours of the ground without any allowance for
overlap.
804.09.01.02
Seed and Mulch
Seed and mulch measurement shall be in square metres following the contours of the ground without any
allowance for overlap.
804.09.01.03
Seed and Erosion Control Blanket
Seed and erosion control blanket measurement shall be in square metres following the contours of the ground
without any allowance for overlap.
804.09.01.04
Seed and Matrix
Seed and matrix measurement shall be in square metres following the contours of the ground without any
allowance for overlap.
804.09.02
Plan Quantity Measurement
When measurement is by Plan Quantity, such measurement shall be based on the units shown in the clauses
under Actual Measurement.
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Rev. Date: 11/2014 OPSS.PROV 804
804.10
BASIS OF PAYMENT
804.10.01
Seed - Item
Seed and Mulch - Item
Seed and Erosion Control Blanket - Item
Seed and Matrix - Item
Payment at the Contract price for the above tender items shall be full compensation for all the labour,
Equipment, and Material to do the work.
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Rev. Date: 11/2014 OPSS.PROV 804
TABLE 1
Permanent Seed Mixes and Seed Certificate Analysis Values
Permanent Seed Mix
Standard Roadside Mix
Grade
Name
Canada #1
Lawn Grass
Seed
Mixture
Minimum Minimum Maximum Seed
Seed
Seed
Seed
Weed
Mix
Species
Germination Purity
Seed
% Composition
%
%
%
%
70
85
0.5
Creeping Red Fescue: Festuca
rubra
52
45 to 60
Kentucky Bluegrass: Poa pratensis
10
5 to 15
Perennial Ryegrass: Lolium
perrenne
35
30 to 40
White Clover: Trifolium repens
3
2 to 7
Creeping Red Fescue: Festuca
rubra
66
62 to 70
Crown Vetch: Coronilla varia
inoculated seed
34
30 to 38
Creeping Red Fescue: Festuca
rubra
66
62 to 70
Birdsfoot Trefoil: Lotus corniculatus
inoculated seed
34
30 to 38
Tall Fescue: Festuca arundinacea
25
20 to 30
Fults Alkali Grass: Puccinellia
distans
20
15 to 25
Creeping Red Fescue: Festuca
rubra
25
15 to 30
Perennial Ryegrass: Lolium
perrenne
20
15 to 25
Hard Fescue: Festuca trachyphylla
10
5 to 15
Crown Vetch Mix
Birdsfoot Trefoil Mix
Salt Tolerant Mix
Common #1
Ground
Cover
Common #1
Forage
Mixture
Canada #1
Ground
Cover
70
75
70
N/A
N/A
85
0.5
0.5
0.5
Continues on Next Page
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Rev. Date: 11/2014 OPSS.PROV 804
Permanent Seed Mix
Lowland Mix
Grade
Name
Canada #1
Ground
Cover
Minimum Minimum Maximum Seed
Seed
Seed
Seed
Weed
Mix
Species
Germination Purity
Seed
% Composition
%
%
%
%
70
N/A
0.5
Creeping Red Fescue: Festuca
rubra
35
30 to 40
Brome Grass: Bromus nerres
25
20 to 30
Kentucky Bluegrass: Poa pratensis
10
5 to 15
Birdsfoot Trefoil: Lotus corniculatus
inoculated seed
5
3 to 7
White Clover: Trifolium repens
5
3 to 7
Perennial Ryegrass: Lolium
perrenne
20
15 to 25
Birdsfoot Trefoil: Lotus corniculatus
inoculated seed
30
25 to 40
Red Top: Agrostis gigantea
10
5 to 15
Tall Fescue: Festuca arundinacea
15
10 to 20
Creeping Red Fescue: Festuca
rubra
30
25 to 35
Hard Fescue: Festuca trachyphylla
5
3 to 7
Alsike Clover: Trifolium hybridum
5
3 to 7
Red Clover: Trifolium pratense
5
3 to 7
Acidic Soil Mix
Canada #1
Ground
Cover
70
N/A
0.5
Continues on Next Page
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Rev. Date: 11/2014 OPSS.PROV 804
Permanent Seed Mix
Old Field Mix
Grade
Name
Canada #1
Ground
Cover
Minimum Minimum Maximum Seed
Seed
Seed
Seed
Weed
Mix
Species
Germination Purity
Seed
% Composition
%
%
%
%
70
N/A
0.5
Flat-topped Aster: Aster umbellatus
37
35 to 40
New England Aster: Aster
novaeangliae
17
10 to 20
Purple-stemmed Aster: Aster
punicens
16
10 to 20
Canada Goldenrod: Solidago
Canadensis
12
10 to 15
Panicled Aster: Aster
simplex/lanceolatus
8
6 to 10
Heath Aster : Aster ericoides or
Frost Aster: Aster pilosus
5
3 to 7
Grass-leaved Goldenrod: Solidago
memoralis
5
3 to 7
Red Top: Agrostis gigantean
3
1 to 5
Canada Bluegrass: Poa compressa
7
5 to 15
Creeping Red Fescue: Festuca
rubra
40
35 to 45
Birdsfoot Trefoil: Lotus corniculatus
inoculated seed
5
2 to 8
Alsike Clover: Trifolium hybridum
3
1 to 5
White Clover: Trifolium repens
2
1 to 5
Perennial Rye Grass: Lolium
perrenne
30
25 to 35
Meadow Fescue: Festuca pratensis
10
5 to 15
Northern Ontario Mix
Page 14
Canada #1
Ground
Cover
70
N/A
0.5
Rev. Date: 11/2014 OPSS.PROV 804
TABLE 2
Application Rates for Seed and Fertilizer
Permanent Seed Mixes
Permanent
Seed Mix Rate
kg/10,000 m²
Fertilizer Rate minimum 200 kg/ha
8-32-16
Standard Roadside Mix
170
365
Crown Vetch Mix
140
365
260
60
Birdsfoot Trefoil Mix
140
365
260
60
Salt Tolerant Mix
170
350
60
Lowland Mix
170
350
60
Acidic Soil Mix
170
350
Old Field Mix
140
350
60
Northern Ontario Mix
170
365
60
0-46-0
0-0-60
Nurse Crop
Rate
kg/10,000 m²
60
220
220
60
TABLE 3
Winter Dormant Period
SOUTHWESTERN ONTARIO
SOUTHERN ONTARIO
NORTHERN ONTARIO
That area of Ontario south of a line That area of Ontario between the
joining Grand Bend and Clarkson. northern and southern boundaries
of Southwestern Ontario and
Northern Ontario respectively.
That area of Ontario north of a line
joining Waubaushene, Severn
Bridge, Bancroft, and Ottawa.
November 15 to April 15 inclusive
October 1 to June 1 inclusive
Page 15
November 1 to April 30 inclusive
Rev. Date: 11/2014 OPSS.PROV 804
Appendix 804-A, November 2014
FOR USE WHILE DESIGNING MUNICIPAL CONTRACTS
Note:
This is a non-mandatory Commentary Appendix intended to provide information to a designer, during
the design stage of a contract, on the use of the OPS specification in a municipal contract. This
appendix does not form part of the standard specification. Actions and considerations discussed in
this appendix are for information purposes only and do not supersede an Owner’s design decisions and
methodology.
Designer Action/Considerations
No information provided here.
Related Ontario Provincial Standard Drawings
No information provided here.
Page 16
Rev. Date: 11/2014 OPSS.PROV 804